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Finding the Fourth Proportional to 480,275.45, 662,762.21 and 276,357.90

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Solution

The fourth proportional to 480,275.45, 662,762.21 and 276,357.90 is: 381,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,275.45 : 662,762.21 = 276,357.90 : x
  2. Step 2: Convert to fraction form
    480,275.45/662,762.21 = 276,357.90/x
  3. Step 3: Cross multiply
    480,275.45x = 662,762.21 × 276,357.90
  4. Step 4: Simplify right side
    480,275.45x = 183,159,570,242.32
  5. Step 5: Solve for x
    x = 183,159,570,242.32/480,275.45
  6. Step 6: Final answer
    x = 381,363.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.